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LT1076HVIR#PBF

LINEAR TECHNOLOGY  LT1076HVIR#PBF  直流-直流开关降压逐步递减稳压器, 可调, 7.3V-64V输入, 2.5V-50V输出, 2A输出, TO-263-7

The is a monolithic bipolar Switching Regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry and all current limit components, are included on the chip. The topology is a classic positive buck configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1076 to drive a tapped-inductor in the buck mode with output currents up to 10A. The LT1076 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behaviour of the regulator is significantly improved over previous designs. On-chip pulse by pulse current limiting makes the LT1076 nearly bust-proof for output overloads or shorts.

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Greatly improved dynamic behaviour
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Programmable current limit
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Micropower shutdown mode
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8.5mA Quiescent current

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